Module: Incoming Solar Radiation
(c) 2001 by O.Conrad
Menu: Terrain Analysis > Lighting
Description
Calculation of the potential incoming solar radiation.

Reference:
- Wilson, J.P., Gallant, J.C., (Eds.), 2000:
'Terrain analysis - principles and applications',
New York, John Wiley & Sons, Inc.
Parameters
NameTypeIdentifierDescriptionConstraints
Input
Elevation Grid (input)ELEVATION
Output
Solar RadiationGrid (output)INSOLAT
Duration of InsolationGrid (output)DURATION
Options
Update ViewBooleanUPDATEShow each time step during calculation.
UnitChoiceUNITAvailable Choices:
[0] kWh/m²
[1] J/m²
Solar Constant [W/m²]Floating pointSOLCONST
Atmospheric EffectsChoiceMETHODAccount for atmospheric effects using either a lumped atmospheric transmittance approach or by calculating the components (water and dust).Available Choices:
[0] Lumped atmospheric transmittance
[1] Calculating the components
Lumped Transmittance [%]Floating pointTRANSMITTThe transmittance of the atmosphere (usually between 60 and 80%)Value Range: 0.000000 - 100.000000
Atmospheric Pressure [mb]Floating pointPRESSUREMinimum: 0.000000
Water Content [cm]Floating pointWATERWater content of a vertical slice of atmosphere in cm: 1.5 to 1.7, average=1.68Minimum: 0.000000
Dust [ppm]Floating pointDUSTDust factor: 100 ppm (standard)Minimum: 0.000000
Latitude [Degree]Floating pointLATITUDEValue Range: -90.000000 - 90.000000
Time Span [h]Value rangeHOUR_RANGETime span used for the calculation of daily radiation sums.
Time Step [h]Floating pointHOUR_STEPTime step size used for the calculation of daily radiation sums.Value Range: 0.001000 - 12.000000
Simulation TimeChoiceTIMESPANAvailable Choices:
[0] Single Day
[1] Range of Days
[2] One Year
DayChoiceSINGLE_DAY_DAYAvailable Choices:
[0] 1
[1] 2
[2] 3
[3] 4
[4] 5
[5] 6
[6] 7
[7] 8
[8] 9
[9] 10
[10] 11
[11] 12
[12] 13
[13] 14
[14] 15
[15] 16
[16] 17
[17] 18
[18] 19
[19] 20
[20] 21
[21] 22
[22] 23
[23] 24
[24] 25
[25] 26
[26] 27
[27] 28
[28] 29
[29] 30
[30] 31
MonthChoiceSINGLE_DAY_MONTHAvailable Choices:
[0] January
[1] February
[2] March
[3] April
[4] May
[5] June
[6] July
[7] August
[8] September
[9] October
[10] November
[11] December
Time Span [day of year]Value rangeDAY_RANGE
Time Step [number of days]IntegerDAY_STEPValue Range: 1.000000 - 100.000000